But with oil selling for around $ 70 a barrel , and with big oil firms struggling to find new resources , the oil sands suddenly seem much more attractive 但鉴于当下油价在70美元上下波动，而石油巨头们却苦于找不到新的资源，油沙似乎突然间变得十分的吸引。
Although the resource base of other fossil fuels such as oil sands , heavy oil and oil shale is very large , they are likely to supply only small amounts of energy before the year2000 虽然其他的矿物燃料如油砂、重油和油页岩的蕴藏量很大，但在2000年前，似乎只能供应能量中的一小部分。
The interfacial activities of alkyl sulfonate and its combined systems with petroleum carboxylate have been studied and mensurate the adsorption of compound surfactant on oil sand in daqing oil field 摘要研究了石油羧酸盐与不同磺酸盐的复配体系的界面活性，测定了复配表面活性剂在大庆油砂上的吸附量。
Other materials , such as coke , salt , fertilizer , oil sand , etc . also need to be processed and or crushed . these procedures require specific machines . the newcomers intended to provide the necessary equipment 别的物料，如焦炭盐矿肥料焦油砂等也都必须被洗选或被击碎，而这些都需要有专门的机械，都需要有新的企业。
Back in the 1990s , when there was little interest in the oil sands , it sought to lure investment by setting a nominal royalty of just 1 % of revenues until investment costs were recovered 在1990年代，当时对油沙的开发热情不高，因此该省为吸引投资规定在投资成本未收回前只对投资公司象征性的征收营业收入的1作为矿区使用费。
Shell and other big investors in the oil sands hope to meet such requirements by siphoning off emissions from their mines and storing them underground ? although the technology to do so is still in its infancy 壳牌和其他大的油沙投资者希望把排放的污染气体从他们的矿区吸抽出来然后贮存于地下，以此满足上述的要求，但是该项技术仍然处于研究的初级阶段。
Even if oil production peaks soon ? a debatable contention given canada ' s oil sands , venezuela ' s heavy oil and other reserves ? coal and its derivatives could tide the earth over for more than a century 即使石油产量在短期内到达极限（若从加拿大的油砂、委内瑞拉的重油及其他储存能源来看，这项看法仍有争议） ，煤及其衍生物应该可以帮助地球至少再撑过一世纪。
Saturated hydrocarbon fractions of free oil , sealing oil and bound oil , which are extracted from six oil sands of yanchang formation in xifeng oilfield of northwestern ordos basin , northwest china , have been analyzed by gc / msd ( 6890n / 5973n ) in order 摘要对鄂尔多斯盆地西峰油田三叠系延长组六个油砂样品中游离烃、封闭烃、束缚烃的饱和烃馏分进行了gc - ms分析。
Two days ago , in beijing , natural resources minister john mccallum pointedly noted that china ' s hunger for the alberta oil sands was so strong that the country could be importing 400 , 000 barrels a day within seven years 加拿大和美国的软木材纠纷当初只是一种让加拿大气愤的事，但是现在，这一纠纷正迅速成为美国在贸易协议问题上对贸易合伙人背信弃义的危险象征。
The sustainable development of chinese energy chemical industry should require integrated utilization of resource , high efficiency conversion of inferior oil and coal , cleaner production and process , utilization of overseas natural gas and oil sand , and developing new raw material 讨论了我国能源化工要实现可持续发展，应该加强炼油化工一体化综合利用，以提高原料利用率，高效利用劣质资源，开展清洁化生产，积极利用海外天然气、油砂等资源以及开辟新的原料途径等。
